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Alik [6]
3 years ago
9

PLEASE HELP ME!!!!!​

Mathematics
2 answers:
sergeinik [125]3 years ago
8 0
Proportional because it is constantly adding .99¢
Maurinko [17]3 years ago
4 0

Answer:

Non Proportional

Step-by-step explanation:

.99(2) = 1.96  1.96(2) = 3.92

That does go, therefore it's non proportional

Hope that makes sense !

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How are rational numbers written as a decimal
wlad13 [49]

i think it because when you rational X and witten the numer as a decimal hope i right just joke


example is rational number 4 12 then it say add and decimal the answer going to be 4.12



<h2>thank you have a nice day </h2>
8 0
3 years ago
The sum of 5 and a certain number, x, is tripled. Write an expression for the resulting number.
Alja [10]
3 (5+x) You tripled 5+x ~JZ
7 0
3 years ago
Can you tell me how to calculate R for below Matrix ?
scoray [572]

Answer:

The rank of the matrix is 3.

Step-by-step explanation:

Consider the prided information.

x=\begin{bmatrix}x_1\\ x_2\\ x_3\end{bmatrix}=\begin{bmatrix}9&2&6&5&8\\ 12&8&6&4&10\\ 3&4&0&2&1\end{bmatrix}

Reduce the matrix in row echelon form as shown:

R_1\:\leftrightarrow \:R_2\begin{bmatrix}12&8&6&4&10\\ 9&2&6&5&8\\ 3&4&0&2&1\end{bmatrix}\\

R_2\:\leftarrow \:R_2-\frac{3}{4}\cdot \:R_1\ and\ R_3\:\leftarrow \:R_3-\frac{1}{4}\cdot \:R_1\\\\\begin{bmatrix}12&8&6&4&10\\ 0&-4&\frac{3}{2}&2&\frac{1}{2}\\ 0&2&-\frac{3}{2}&1&-\frac{3}{2}\end{bmatrix}

R_3\:\leftarrow \:R_3+\frac{1}{2}\cdot \:R_2\\\begin{bmatrix}12&8&6&4&10\\ 0&-4&\frac{3}{2}&2&\frac{1}{2}\\ 0&0&-\frac{3}{4}&2&-\frac{5}{4}\end{bmatrix}

R_2\:\leftarrow \:R_2-\frac{3}{2}\cdot \:R_3\ and\ R_1\:\leftarrow \:R_1-6\cdot \:R_3\\\begin{bmatrix}12&8&0&20&0\\ 0&-4&0&6&-2\\ 0&0&1&-\frac{8}{3}&\frac{5}{3}\end{bmatrix}\\R_2\:\leftarrow \:-\frac{1}{4}\cdot \:R_2\ , \ R_1\:\leftarrow \:R_1-8\cdot \:R_2\ and\ \:R_1\:\leftarrow \frac{1}{12}\cdot \:R_1\\\begin{bmatrix}1&0&0&\frac{8}{3}&-\frac{1}{3}\\ 0&1&0&-\frac{3}{2}&\frac{1}{2}\\ 0&0&1&-\frac{8}{3}&\frac{5}{3}\end{bmatrix}

The rank of a matrix is the number of non zeros rows.

Thus, the rank of the matrix is 3.

6 0
3 years ago
F(ə) =
barxatty [35]

Answer: To get function g, shift f DOWN by 7 units and to the RIGHT by 2 units

Step-by-step explanation: g(x)= (x-2)^2-7 since they’re both negatives it should be the opposite. An example would be g(x)=(x+3)^2+5, f goes UP for positive by 5 units, left by 3 units.

5 0
2 years ago
Evaluate the expression described below if the number is 4. The difference between a number squared and the number.
Margarita [4]
Hello,

x^2-x=4\\&#10;x^2-x-4=0\\&#10;\Delta=1^2-4*(-4)=17\\&#10;x= \dfrac{1+ \sqrt{17} }{2} \\&#10;or\\&#10;x= \dfrac{1- \sqrt{17} }{2} \\&#10;
3 0
4 years ago
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